Best Time to Visit Boston
United States · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
Recommended Months
Based on temperature comfort, low precipitation, and sunshine hours, the best time to visit Boston is:
July → August → June
July scores 64/100 — the highest-rated month for travel.
Monthly Ratings (0-100)
Scores are weighted: temperature comfort (50%), low precipitation (30%), sunshine (20%). Higher is better.
| Month | Overall Score | Temp Comfort | Precipitation | Sunshine | Bar |
|---|---|---|---|---|---|
| January | 0 | 0 | 0 | 0 | |
| February | 0 | 0 | 0 | 0 | |
| March | 3 | 6 | 0 | 0 | |
| April | 14 | 27 | 0 | 0 | |
| May | 30 | 59 | 0 | 0 | |
| June | 44 | 87 | 0 | 0 | |
| July | 48 | 96 | 0 | 0 | |
| August | 49 | 98 | 0 | 0 | |
| September | 39 | 78 | 0 | 0 | |
| October | 25 | 50 | 0 | 0 | |
| November | 10 | 20 | 0 | 0 | |
| December | 0 | 0 | 0 | 0 |
Monthly Temperature Comfort
| Month | Mean Temp | Comfort Level |
|---|---|---|
| January | -0.4°C (31.3°F) | Cold (Below 0°C) |
| February | -0.0°C (32.0°F) | Cool (0-9°C) |
| March | 4.3°C (39.7°F) | Cool (0-9°C) |
| April | 8.4°C (47.1°F) | Cool (0-9°C) |
| May | 14.8°C (58.6°F) | Mild (10-17°C) |
| June | 20.4°C (68.7°F) | Warm (18-24°C) |
| July | 23.8°C (74.8°F) | Warm (18-24°C) |
| August | 22.7°C (72.9°F) | Warm (18-24°C) |
| September | 18.5°C (65.3°F) | Warm (18-24°C) |
| October | 13.1°C (55.6°F) | Mild (10-17°C) |
| November | 7.1°C (44.8°F) | Cool (0-9°C) |
| December | 2.2°C (36.0°F) | Cool (0-9°C) |
Monthly Precipitation Rating
| Month | Rainfall (mm) | Rainy Days | Rating |
|---|---|---|---|
| January | 109.0 mm | 9.6 | Very Wet |
| February | 74.9 mm | 8.8 | Wet |
| March | 114.7 mm | 14.0 | Very Wet |
| April | 98.6 mm | 15.0 | Wet |
| May | 86.9 mm | 14.0 | Wet |
| June | 75.6 mm | 16.8 | Wet |
| July | 118.5 mm | 18.2 | Very Wet |
| August | 92.2 mm | 17.0 | Wet |
| September | 126.5 mm | 14.8 | Very Wet |
| October | 116.1 mm | 11.2 | Very Wet |
| November | 74.4 mm | 9.4 | Wet |
| December | 131.7 mm | 12.0 | Very Wet |
Monthly Sunshine Rating
| Month | Sunshine (hrs/day) | Rating |
|---|---|---|
| January | 5.7 hrs | Moderate |
| February | 6.6 hrs | Good |
| March | 8.1 hrs | Excellent |
| April | 8.5 hrs | Excellent |
| May | 10.8 hrs | Excellent |
| June | 11.4 hrs | Excellent |
| July | 11.2 hrs | Excellent |
| August | 10.7 hrs | Excellent |
| September | 8.9 hrs | Excellent |
| October | 7.8 hrs | Good |
| November | 7.1 hrs | Good |
| December | 5.6 hrs | Moderate |
Season-by-Season Breakdown
Spring (Mar-May)
Temperature: 9.2°C (48.6°F)
Rainfall: 100.1mm avg
Sunshine: 9.1 hrs/day
Humidity: 67.3%
Rainy Days: 14.3/mo
Mild transitional weather — comfortable for most activities.
Summer (Jun-Aug)
Temperature: 22.3°C (72.1°F)
Rainfall: 95.4mm avg
Sunshine: 11.1 hrs/day
Humidity: 72.1%
Rainy Days: 17.3/mo
This is the warm season. Ideal for outdoor activities but be prepared for heat.
Autumn (Sep-Nov)
Temperature: 12.9°C (55.2°F)
Rainfall: 105.7mm avg
Sunshine: 7.9 hrs/day
Humidity: 74.2%
Rainy Days: 11.8/mo
Mild transitional weather — comfortable for most activities.
Winter (Dec-Feb)
Temperature: 0.6°C (33.1°F)
Rainfall: 105.2mm avg
Sunshine: 6.0 hrs/day
Humidity: 70.4%
Rainy Days: 10.1/mo
This is the cool season. Pack warm layers and plan indoor activities.
Frequently Asked Questions
What is the best time to visit Boston?
Based on our data-driven analysis, the best months to visit Boston are July, August, June, when temperatures are comfortable, rainfall is lower, and sunshine is plentiful. July scores 64/100, the highest-rated month.
What is the hottest month in Boston?
July is the hottest month with an average temperature of 23.8°C (74.8°F).
What is the coldest month in Boston?
January is the coldest month with an average temperature of -0.4°C (31.3°F).
When is the rainy season in Boston?
December is the wettest month with an average of 131.7mm of precipitation. Boston experiences about 161.0 rainy days per year. The driest month is November with 74.4mm.
What should I pack for a trip to Boston?
Packing recommendations depend on the season of your visit. Based on the climate data, pack lightweight, breathable clothing if visiting during the warm months (July is hottest at 23.8°C). For cooler months, bring layers and a warm jacket (January averages -0.4°C). A waterproof jacket or umbrella is recommended year-round as Boston receives 1219.0mm of annual precipitation. Sun protection is important, especially during months with high UV index.
Boston's four distinct seasons make it one of the most dynamic New England cities for climate study. I've tracked the data and found that the city experiences beautiful autumns, cold winters, mild springs, and warm summers. The best time for visiting is May to October, with September being the ideal month for comfortable temperatures and the famous fall foliage.
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 42.36°, -71.06°. Timezone: America/New_York. Last updated: 2026-07-30.